Patents by Inventor Jean-Louis Chanvin

Jean-Louis Chanvin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4847894
    Abstract: A device for aiding maintenance of an electromechanical installation, which installation has an automatic monitoring and control apparatus, provides remote supervision of the electromechanical installation. The device includes a control unit connected to the automatic monitoring and control apparatus and to the public telephone system. The device also includes at least one external supervision video terminal having a keyboard, a display screen, and a printer. The video terminal is connected to the public telephone system for remote interrogation of the control unit.
    Type: Grant
    Filed: November 28, 1986
    Date of Patent: July 11, 1989
    Assignees: Spie-Batignolles, Regie Autonome des Transports Parisiens
    Inventors: Jean-Louis Chanvin, Anselme Cote, Georges Menou